Finding the Fourth Proportional to 70,907.34, 106,352.76 and 18,312.68
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Solution
The fourth proportional to 70,907.34, 106,352.76 and 18,312.68 is: 27,466.89
Step by Step Solution
- Step 1: Write the proportion equation
70,907.34 : 106,352.76 = 18,312.68 : x - Step 2: Convert to fraction form
70,907.34/106,352.76 = 18,312.68/x - Step 3: Cross multiply
70,907.34x = 106,352.76 × 18,312.68 - Step 4: Simplify right side
70,907.34x = 1,947,604,061.00 - Step 5: Solve for x
x = 1,947,604,061.00/70,907.34 - Step 6: Final answer
x = 27,466.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.